A Norwegian 15th century variant of Harald. Also a Danish variant of the German Arnold.
- A male given name.
- Kristoffer Kruken - Ola Stemshaug: Norsk personnamnleksikon, Det Norske Samlaget, Oslo 1995, ↑ISBN
-  Statistisk sentralbyrå, Namnestatistikk: 10 640 males with the given name Arild living in Norway on January 1st 2011, with the frequency peak in the 1950s. Accessed on April 29th, 2011.